Add braille & quarter-block canvas. Add scatter plot type. Re-write linechart + barchart.

1 files changed, 23 insertions, 0 deletions

diff --git a/pkg/draw/canvas.go b/pkg/draw/canvas.go
new file mode 100644
index 0000000..0235c66
--- /dev/null
+++ b/pkg/draw/canvas.go
@@ -0,0 +1,23 @@
+package draw
+
+type Pixels interface {
+	GetBuffer() *Buffer
+	Clear()
+	Set(y, x int)
+	Size() Box
+}
+
+type Canvas struct{ Pixels }
+
+func (c *Canvas) RuneSize() Box {
+	pixelBox := c.Size()
+	runeBox := c.GetBuffer().Box
+	return Box{
+		Width:  pixelBox.Width / runeBox.Width,
+		Height: pixelBox.Height / runeBox.Height,
+	}
+}
+
+func (c *Canvas) DrawLine(y0, x0, y1, x1 int) {
+	line(y0, x0, y1, x1, c.Set)
+}